Home / 38,140.18-57,133.65-21,475.24

Finding the Fourth Proportional to 38,140.18, 57,133.65 and 21,475.24

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Solution

The fourth proportional to 38,140.18, 57,133.65 and 21,475.24 is: 32,169.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,140.18 : 57,133.65 = 21,475.24 : x
  2. Step 2: Convert to fraction form
    38,140.18/57,133.65 = 21,475.24/x
  3. Step 3: Cross multiply
    38,140.18x = 57,133.65 × 21,475.24
  4. Step 4: Simplify right side
    38,140.18x = 1,226,958,845.83
  5. Step 5: Solve for x
    x = 1,226,958,845.83/38,140.18
  6. Step 6: Final answer
    x = 32,169.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.